Question

Immediate and subsequent action on stator high temperature alarm.

Immediate response is necessary to avoid temperature going up and damaging insulation

Reduce loading. Start stand by and take on load. Keep running faulty generator.

Check ventilation and cooling.

Try to improve ventilation and cooling if possible by putting a duct or portable air blower.

Subsequently stop.

Check filter.

Check cooling water.

Stator winding continuity.

Stator winding IR.

Check continuity of temperature sensor.

Open inspect clean check air gap.

Question

State the feature of the winding cooler tubes that prevent damage to the winding in event of a leakage.

External emergency doors in the generator air cooling duct are provided so that they may be opened if the water cooling system has gone faulty.